Question

A particle moving in a straight line covers half the distance with speed of 3 m/s.The other half of the distance is covered in two equal time intervals with
speed of 4.5 m/s and 7.5 m/s respectively. The
average speed of the particle during this motion is :
(a) 4.0 m/s (b) 5.0 m/s (c) 5.5 m/s (d) 4.8 m/s​

Answer 1

Answer:

4m/s

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